//练习1：使用fp.add(x,y)和fp.map(f,x)创建一个能让functor里的值增加的函数ex1
const fp = require('lodash/fp')
const { Maybe, Container } = require('./support')
let maybe = Maybe.of([5, 6, 1])

let ex1 = (number) => {
   return maybe.map(fp.map(fp.add(number)))
}

console.log(ex1(3)._value)